Claude Certified Architect · AWS Certified

From microservices to AI agents.

Eimer Castro — Lead Software Engineer in Medellín. A decade of Java & Spring at enterprise scale, now architecting agentic systems with the Claude Agent SDK.

See my work Book a talk

10+ years
shipping production systems
>90%
unit-test coverage raised
3 mentees
placed in first eng. jobs
2 languages
español native · english pro

capabilities.json

What I bring to a team

backend.core

Distributed systems

Java · Spring Boot · WebFlux · microservices · clean architecture · JUnit 5 / Mockito

ai.agents

Agentic engineering

Claude Agent SDK · Claude Skills · agent architecture · Claude Certified Architect

cloud.delivery

Cloud & CI/CD

AWS · GCP · Jenkins · Gradle · pipelines that cut deploy time and human error

team.growth

Leadership & mentoring

Engineering standards · certified tech interviewer · LatAm Campus mentor

now.building

Bringing a decade of backend discipline to agentic systems — clean architecture, testing rigor and CI/CD applied to Claude-powered products.

Claude Agent SDK
Claude Skills
Certified Architect

career.log

Experience

Impact over duties. Click an entry to expand it.

Architecture and end-to-end delivery of enterprise full-stack solutions — Java, Spring Boot, Angular, AWS & GCP
Raised unit-test coverage to >90% and standardized practices across backend and frontend teams
Built CI/CD pipelines with Jenkins & Gradle, cutting deployment time and release regressions
Modernization initiatives: clean architecture, modularization, WebFlux and microservices patterns
Mentored engineers and LatAm Campus students into their first junior roles; certified technical interviewer
EPAM ambassador — speaker and workshop lead at Java Americas tech talks

community.share

Talks & mentoring

Speaker

Talks and workshops at Java Americas and Java community events — system design, modern engineering practices, and leadership in software teams.

Mentor

Structured feedback, goal-setting and pairing — three EPAM LatAm Campus students trained and placed into their first engineering jobs.

Open to

Tech talks · workshops · mentoring sessions · podcast conversations, in English or Spanish.

Invite me

writing.log

Latest writing

Read the blog →

Eimer Castro smiling at a table in the EPAM Medellín office

about.me

The short version

I started with soccer robots at Universidad Nacional de Colombia and never stopped wanting to see software move things in the real world. Ten years later I've shipped systems for banks, clinics and global enterprises — from helpdesk rooms in Bello to lead engineer at EPAM.

What I care about hasn't changed: clean architecture, honest tests, and engineers who grow because someone took the time. These days that means teaching machines — and people — to do their best work, with Claude agents and a decade of backend scar tissue.

Medellín, Colombia
rides a motorbike
cat person
lifelong learner

say.hola

Let's build something.

Hiring for a lead engineer, planning an AI initiative, or organizing a Java event — my inbox is open, in English o en español.

ewcastroh10@gmail.com LinkedIn GitHub